I believe the bounce works as follows, you can't fall more than four blocks below your starting point, and if you hit your head part way through, you can't fall more than four blocks from there.
Things to note
Electro towers do extra damage to kevlar (the dark red guys), though they do less damage to some other enemies. Still, it's hard to beat the all-red levels without them.
If you beat a level on perfect (full health) the first time, you get 3 skill points. If you beat it but not on perfect, you only get 2 skill points and you can't get the extra skill point by redoing the level.
It's a deterministic game with no hidden information, and with a state tree only 12! in size, it would be easy enough to write a brute force minimax algorithm to determine which player would win assuming both players played optimally, or whether it would be a draw.
Making challenges that can only be beaten by trial and error is considered bad game design. Have you read Adams & Rollings "Fundamentals of Game Design"?
I do 47 by shooting both basketballs into the bottom box and the explosive into the top box. You need to aim somewhere near the bottom of the monkey's belly for the explosive, I think. Then make sure you click while the ball is still in the air once it gets in the box - not after it lands.
For 32, try to knock both top microwaves to the bottom. It takes a few tries. Use the plates as your guide.
This game rocks! Though it is hard. Took me ages but I finally got 14 perfects. I think the hardest for me were Train Wreck and Speedfreak even though they are not listed as the hardest. I wish there would be a SCGMD4. PS, The songs are cool.
Finished it in 16 days (-:
Nice game!
(a tip to start. After day 1, you should buy acceleration. Then on day 2, bounce twice on the water. You should complete the first achievement and be able to afford a glider before starting day 3).
(Also note... you pay extra money if you upgrade the abilities 1 at a time. You can save money by upgrading them in bigger 'jumps')
Some games are hard to figure out what to do. With the boss, once you kill the eight screens, you need to shoot his eyes. You can hold down the spacebar to do this, stay in the one spot where he stops at for easiest way. This game was fun.